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BIM has been gradually applied in subway projects, and has achieved good results in information construction, reasonable arrangement of construction procedures, speeding up construction speed, saving project cost, etc. The application of BIM technology makes many people see its advantages, thus promoting its further development and the introduction of BIM related technologies.* * Please name the name in Latin, Chinese translation from Baidu * *这会他们聚集在一起，就是要商议出一个应对眼前危局的策略。又说这郑昊年前在边关战死。Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.8. Charm 8:15 001 or above.